[PATCH 4/5] md: Return proper error rather than EIO.

[majianpeng <majianpeng@xxxxxxxxx>]

Signed-off-by: Jianpeng Ma <majianpeng@xxxxxxxxx>
---
 drivers/md/raid1.c |    4 ++--
 drivers/md/raid5.c |    4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index 8034fbd..e2f3783 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -2799,12 +2799,12 @@ static int run(struct mddev *mddev)
 	if (mddev->level != 1) {
 		printk(KERN_ERR "md/raid1:%s: raid level not set to mirroring (%d)\n",
 		       mdname(mddev), mddev->level);
-		return -EIO;
+		return -EINVAL;
 	}
 	if (mddev->reshape_position != MaxSector) {
 		printk(KERN_ERR "md/raid1:%s: reshape_position set but not supported\n",
 		       mdname(mddev));
-		return -EIO;
+		return -EINVAL;
 	}
 	/*
 	 * copy the already verified devices into our private RAID1
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index c5439dc..684ca76 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -5088,7 +5088,7 @@ static struct r5conf *setup_conf(struct mddev *mddev)
 	    && mddev->new_level != 6) {
 		printk(KERN_ERR "md/raid:%s: raid level not set to 4/5/6 (%d)\n",
 		       mdname(mddev), mddev->new_level);
-		return ERR_PTR(-EIO);
+		return ERR_PTR(-EINVAL);
 	}
 	if ((mddev->new_level == 5
 	     && !algorithm_valid_raid5(mddev->new_layout)) ||
@@ -5096,7 +5096,7 @@ static struct r5conf *setup_conf(struct mddev *mddev)
 	     && !algorithm_valid_raid6(mddev->new_layout))) {
 		printk(KERN_ERR "md/raid:%s: layout %d not supported\n",
 		       mdname(mddev), mddev->new_layout);
-		return ERR_PTR(-EIO);
+		return ERR_PTR(-EINVAL);
 	}
 	if (mddev->new_level == 6 && mddev->raid_disks < 4) {
 		printk(KERN_ERR "md/raid:%s: not enough configured devices (%d, minimum 4)\n",
-- 
1.7.9.5
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